OT Infrastructure & Network Security Lead

Operations Manager – OT Infrastructure / Senior Network & Security Engineer

Location: Antwerp
Experience: 8+ Years
No. of Positions: 2
Job Type: Full-time
Start Date: ASAP

Job Summary

We are looking for an experienced Operations Manager – OT Infrastructure / Senior Network & Security Engineer with strong expertise in Cisco networking and Palo Alto firewall technologies.

The ideal candidate will be responsible for end-to-end L3 support, operational management, troubleshooting, and governance of enterprise network and network security environments across datacenter, branch, hybrid, and OT infrastructure landscapes.

Key Responsibilities

Network Operations (Cisco)

• Provide L3 support for enterprise network infrastructure including Cisco routers, switches, WAN/LAN, datacenter, and branch connectivity
• Troubleshoot advanced networking issues involving:
  • Routing & Switching
  • VLANs & Trunking
  • STP
  • HSRP / VRRP
  • ACLs
  • BGP / OSPF / Static Routing
  • Packet Loss & Latency
  • Link Flaps & Asymmetric Routing
• Support network migrations, cutovers, onboarding activities, and service changes
• Monitor network utilization, interface errors, and overall network performance

Network Security Operations (Palo Alto)

• Provide L3 support for Palo Alto firewall environments
• Manage firewall policies, NAT, VPN, policy tuning, and traffic flow analysis
• Troubleshoot firewall-related issues impacting application communication and connectivity
• Support Panorama-managed environments and firewall governance activities
• Coordinate implementation of security controls aligned with enterprise standards

Incident, Change & Problem Management

• Lead P1/P2 incident handling for network and security-related services
• Act as escalation point for major outages and recurring service issues
• Conduct root cause analysis and define corrective/preventive actions
• Execute planned changes with proper validation, rollback planning, and governance
• Ensure service restoration checks and change documentation are completed

Operations & Governance

• Manage operational activities across networking and security domains
• Drive SLA compliance, escalation handling, and operational prioritization
• Mentor L1/L2 engineers and support knowledge transfer initiatives
• Coordinate with customers, ISPs, OEMs, cloud teams, and internal technical teams
• Maintain SOPs, network diagrams, firewall documentation, and implementation standards
• Support audit, compliance, vulnerability remediation, and hardening initiatives
• Identify opportunities for optimization, standardization, and operational improvements

Required Qualifications

• 8+ years of experience in enterprise network and network security operations
• Strong hands-on expertise in Cisco networking technologies
• Strong hands-on expertise in Palo Alto firewalls
• Good understanding of:
  • Routing & Switching
  • VLANs, Trunking, STP
  • OSPF / BGP
  • ACLs
  • NAT & VPN
  • Network Segmentation
  • Firewall Policy Evaluation
  • Packet Flow Analysis
• Experience in enterprise datacenter, branch, and hybrid network environments
• Strong troubleshooting skills across networking and security layers
• Excellent incident management and stakeholder coordination skills
• Strong analytical, documentation, and reporting capabilities
• Ability to independently handle L3 escalations and high-priority incidents

Note: For this position, Dutchand English communication proficiency mandatory.

Preferred Skills

• Exposure to cloud connectivity and cloud security integrations
• Experience with monitoring tools and security log analysis
• Scripting or automation exposure for operational efficiency
• Vendor coordination and escalation management experience
• Familiarity with OT or industrial infrastructure environments

What We Offer

• Competitive salary package and long-term project opportunities
• Opportunity to work on enterprise-scale network and security environments
• International and collaborative work culture
• Exposure to modern networking, cybersecurity, and hybrid infrastructure technologies
• Career growth and leadership opportunities
• High-impact operational role with strong ownership and technical decision-making exposure

How to Apply

If this opportunity excites you, click “Apply Now ” or send your application to with the subject “Application for Operations Manager – OT Infrastructure / Senior Network & Security Engineer | Antwerp | Full Time” .

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